Top critical review
COMMON WIRE ISSUE!
Reviewed in the United States on June 13, 2018
I'm actually writing a review in hopes to help others not go through what I just went through.
I bought the nest and after a frustrating 2+ hours, I'm promptly returning it. First, I went through the whole setup and everything was fine...at first. My house at this time was sitting at 79 degrees. I turned on the a/c and had cool blowing air for about 2 minutes. At which time the system shut off. I happened to go outside and noticed that the a/c unit was still running but nothing was getting cooler. At this point the real problems began. I looked up online possible fixes to my nest short cycling my a/c unit. Came across "common wire issue" apparently the nest leeches power off your furnace to run it's system (as opposed to being run on batteries) what was happening since I didn't have a "common" wire the system would fail safe and shut off only to try and run again 2 mins later and the cycle would repeat indefinitely. So I watched several videos and read several forums and tried to do the troubleshooting. I swapped my fan wire "G" to make it my common wire "C" and replaced it on the furnace unit as well. When I checked the nest system it began to tell me it didn't have power anymore and shut itself off. With the main unit off the app became useless and literally it became a paperweight. I even tried setting it back to its original wiring (going through the whole process again but in reverse) and still nothing. At this point I'm drenched in sweat so I switched back to my old unit and I can say as I sit in my cooling house it still works.
So I'm returning my unit and I will be so happy to get my $200 refund for what was essentially a waste of time, energy and of course money.